Menstrual Factors, Reproductive History, Hormone Use, and Urothelial Carcinoma Risk: A Prospective Study in the EPIC Cohort.
Journal
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology
ISSN: 1538-7755
Titre abrégé: Cancer Epidemiol Biomarkers Prev
Pays: United States
ID NLM: 9200608
Informations de publication
Date de publication:
08 2020
08 2020
Historique:
received:
07
02
2020
revised:
07
04
2020
accepted:
19
05
2020
pubmed:
30
5
2020
medline:
25
11
2021
entrez:
30
5
2020
Statut:
ppublish
Résumé
Urothelial carcinoma is the predominant (95%) bladder cancer subtype in industrialized nations. Animal and epidemiologic human studies suggest that hormonal factors may influence urothelial carcinoma risk. We used an analytic cohort of 333,919 women from the European Prospective Investigation into Cancer and Nutrition Cohort. Associations between hormonal factors and incident urothelial carcinoma (overall and by tumor grade, tumor aggressiveness, and non-muscle-invasive urothelial carcinoma) risk were evaluated using Cox proportional hazards models. During a mean of 15 years of follow-up, 529 women developed urothelial carcinoma. In a model including number of full-term pregnancies (FTP), menopausal status, and menopausal hormone therapy (MHT), number of FTP was inversely associated with urothelial carcinoma risk (HR Our results support that increasing the number of FTP may reduce urothelial carcinoma risk. More detailed studies on parity are needed to understand the possible effects of perinatal hormone changes in urothelial cells.
Sections du résumé
BACKGROUND
Urothelial carcinoma is the predominant (95%) bladder cancer subtype in industrialized nations. Animal and epidemiologic human studies suggest that hormonal factors may influence urothelial carcinoma risk.
METHODS
We used an analytic cohort of 333,919 women from the European Prospective Investigation into Cancer and Nutrition Cohort. Associations between hormonal factors and incident urothelial carcinoma (overall and by tumor grade, tumor aggressiveness, and non-muscle-invasive urothelial carcinoma) risk were evaluated using Cox proportional hazards models.
RESULTS
During a mean of 15 years of follow-up, 529 women developed urothelial carcinoma. In a model including number of full-term pregnancies (FTP), menopausal status, and menopausal hormone therapy (MHT), number of FTP was inversely associated with urothelial carcinoma risk (HR
CONCLUSIONS
Our results support that increasing the number of FTP may reduce urothelial carcinoma risk.
IMPACT
More detailed studies on parity are needed to understand the possible effects of perinatal hormone changes in urothelial cells.
Identifiants
pubmed: 32467345
pii: 1055-9965.EPI-20-0184
doi: 10.1158/1055-9965.EPI-20-0184
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1654-1664Subventions
Organisme : Cancer Research UK
ID : C570/A16491
Pays : United Kingdom
Organisme : Medical Research Council
ID : MR/M012190/1
Pays : United Kingdom
Organisme : Cancer Research UK
ID : C8221/A19170
Pays : United Kingdom
Organisme : Cancer Research UK
ID : 25004
Pays : United Kingdom
Organisme : Cancer Research UK
ID : 14136
Pays : United Kingdom
Informations de copyright
©2020 American Association for Cancer Research.